Here is the 1902 Gregg Shorthand Manual. It is the 4th Version of the manual. The printing was from 1908.
Here are the versions for Pre-Anniversary and Anniversary Gregg Shorthand:
1888 1st Version - Liverpool limited press of 500
1893 2nd Version - First US version
1898 3rd Version - Title was "Gregg's Shorthand"
1902 4th Version
1916 5th Version - Often Referred to as "Pre-Anniversary"
1929 6th Version - Anniversary Edition.